Silo construction.



. J. PERKINS. SILO CONSTRUCTION.

APPLICATION HLED JAN. 22, I915.

Patented May 29, 1917.

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SILO CONSTRUCTION.

APPLICATION FILED MN. 22. I915.

L lw wg Patented May 29, 1917.

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CHARLES J. PERKINS, OF DES IIIOINES, IOWA, ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, TO PERFECTION CONCRETE STAVE SILO COMPANY, OF PIERRE, SOUTHDAKOTA, A CORPORATION OF SOUTH DAKOTA.

SILO CONSTRUCTION.

Specification of Letters Patent.

Patented May 2%), 15917.

Application filed January 22, 1915. Serial No. 3,682.

To all whom it may concern:

Be it known that I, CHARLES J. PERKINS, a citizen of the United States,and a resident of the city of Des Moines, county of Polk, and State ofIowa, have invented certain new and useful Improvements in SiloConstructions, of which the following is a specification.

My invention relates to improvements in silo constructions, and has forits object the provision of a construction of this character which iscapable of economical manufacture, and is highly eflicient in use.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

The invention will be best understood by reference to the accompanyingdrawings forming a part of this specification, and in Figure l is a rearview of a silo construction embodying my invention,

Fig. 2, an enlarged perspective view of one of the blocks or stavemembers employed in the construction, I

Fig. 3, a different perspective view of the same,

Fig. 4, an enlarged horizontal section taken through a portion of thewalls of said construction,

Fig. 5, an enlarged vertical section taken through a portion of thewalls of said construction,

Fig. 6, an enlarged vertical section illustrating a dowel connectionemployed in the construction,

Fig. 7 a view illustrating the positions assumed by blocks or stavemembers employed in the construction when a larger construction is made,and

Fig. 8, a similar view when a smaller construction is made.

The preferred form of construction, as illustrated in the drawings,comprises a substantially cylindrical hollow body 9, the side walls ofwhich are made up of a plurality of substantially rectangular blocks orstave members 10, each of said blocks being provided at its top with agroove 11 and at its bottom with a tongue 12 fitting within said groove,the adjoining edges of said blocks being secured together by mortar inthe usual manner. The outer adjoining corner edges of each of the blocks10 is rounded as at 13 to facilitate the rolling thereof on each other,as indicated in 'Fig. 7, and the sides of said blocks are recessed at14: to provid a space for the reception of mortar in building, and theinner corner edges of the blocks are arranged to pivot upon each otherwhen the blocks are employed in making a smaller construction, asillustrated in Fig. 8. At each side of each end, each of the blocks 10is provided with a triangular recess or slot '15 positioned in therounded portion 13 thereof and arranged to register with thecorresponding slot or recess in the adjacent member 10 above or below.At each side, intermediate the ends, each of the blocks 10 is providedwith a substantially triangular recess 16 positioned to register withthe corresponding recesses 15 so as to form there with a substantiallydiamond shaped pocket adapted to receive a substantially diamond shapeddowel 17, as indicated in the drawmgs.

In building the silo, the first row of blocks or stave members is setupon a suitable foundation, every other one, however, being a half blockor stave so as to cause overlapping of the joints of the staves, andthus breaking of the horizontal joints therebetween. The arrangement issuch that the recesses 15, in the upper corners of the half blocks orstaves register with the recesses 16 in the sides of the adjoining fullblocks or staves, thus forming pockets into which the dowel members 17may be dropped. Then the different joints are filled with mortar and theblocks or stave members set on top of the half blocks or stave members,completely inclosing the dowel members in a pocket and forming a rigidand secure connection between the different blocks or stave members.Then the full blocks or stave members are set in the spaces between thelast set of blocks or stave members in the same manner until the desiredheight is reached when half blocks or stave members are again employedto provide an even top to the side walls. By rounding the outer corneredges 13 of the diflerent blocks or stave members, and by locating therecesses in or adjacent the rounded outer corners 13, the constructionof different sized silos is facilitated.

After the Walls have thus been built up, they are reinforced by bands orhoops 18 and a suitable cover 19 is placed thereon thus completing theconstruction, it being understood, of course, that sultable doors areprovided for access to the interior of the silo in my invention intoeffect, this is capable of variation and modification Without departingfrom the spirit of the invention. I, therefore, do not wish to belimited to the precise details of construction set forth, but desire toavail myself-of such variations and modifications as come within thescope of the appended claims.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

1. A curvilinear construction having side walls made up of separatemembers set edge to edge, adjoining outer corner edges of said membersbeing conveXly rounded, and fastening means connecting said edgessubstantially as described.

2. A curvilinear construction having side walls made up of separatemembers set edge to edge, adjoining corner edges of said members beingconvexly rounded, there being registering recesses in said membersadjacent said rounded edges; and dowels in said recesses, substantiallyas described.

3. In a device of the class described, a wall formed of a plurality ofseparate members arranged edge to edge, the outer portion of theadjoining corner edges of said members being c onvexly rounded and theinner portion being concavely rounded, there being registering recessesin the conveXly rounded portions, and dowels in said recesses,substantially as described.

l. In a device of the class described, a wall formed of a plurality ofseparate members arranged edge to edge, the outer portion of theadjoining corner edges of said members being conveXly rounded and theinner portion being concavely rounded, there being registering recessesin the convexly rounded portions, dowels in said recesses, and adhesivematerial securing said dowels in said recesses, substantially asdescribed.

5. In a device of the class described, a wall formed'of a plurality ofseparate members arranged edge to edge, the outer por tion of thevertical edges of all of said members being conveXly rounded and theinner portions of said edges being concavely rounded, the outer portionsof the horizontal edges being fiat and the inner portions thereof beingof tongue and groove construction, there being registering recesses inthe outer portions of said edges, and dowels in said recesses,substantially as described.

6. In a device of the class described, a wall formed of a plurality ofseparate members ar 'anged edge to edge, the outer portion of thevertical edges of all of said members being conveXly rounded and theinner portions of said edges being concavely rounded, the outer portionsof the horizontal edges being flat and the inner portions thereof beingof tongue and groove construction, there being registering recesses I inthe outer portions of said edges, dowelsin said recesses, and adhesivematerial securing said dowels in said recesses, substantially asdescribed.

In testimonywhereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES J. PERKINS.

Witnesses JOSHUA R. H. Porrs, B. G. RIOHA-RDS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

